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  1. /*
  2.  * Copyright (C) 2005 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /**
  30.  * This file contains register window trap handlers.
  31.  */
  32.  
  33. #ifndef __sparc64_REGWIN_H__
  34. #define __sparc64_REGWIN_H__
  35.  
  36. #include <arch/stack.h>
  37.  
  38. #define TT_CLEAN_WINDOW         0x24
  39. #define TT_SPILL_0_NORMAL       0x80
  40. #define TT_FILL_0_NORMAL        0xc0
  41.  
  42. #define REGWIN_HANDLER_SIZE     128
  43.  
  44. #define CLEAN_WINDOW_HANDLER_SIZE   REGWIN_HANDLER_SIZE
  45. #define SPILL_HANDLER_SIZE      REGWIN_HANDLER_SIZE
  46. #define FILL_HANDLER_SIZE       REGWIN_HANDLER_SIZE
  47.  
  48. /** Window Save Area offsets. */
  49. #define L0_OFFSET   0
  50. #define L1_OFFSET   8
  51. #define L2_OFFSET   16
  52. #define L3_OFFSET   24
  53. #define L4_OFFSET   32
  54. #define L5_OFFSET   40
  55. #define L6_OFFSET   48
  56. #define L7_OFFSET   56
  57. #define I0_OFFSET   64
  58. #define I1_OFFSET   72
  59. #define I2_OFFSET   80
  60. #define I3_OFFSET   88
  61. #define I4_OFFSET   96
  62. #define I5_OFFSET   104
  63. #define I6_OFFSET   112
  64. #define I7_OFFSET   120
  65.  
  66. .macro SPILL_NORMAL_HANDLER
  67.     stx %l0, [%sp + STACK_BIAS + L0_OFFSET]
  68.     stx %l1, [%sp + STACK_BIAS + L1_OFFSET]
  69.     stx %l2, [%sp + STACK_BIAS + L2_OFFSET]
  70.     stx %l3, [%sp + STACK_BIAS + L3_OFFSET]
  71.     stx %l4, [%sp + STACK_BIAS + L4_OFFSET]
  72.     stx %l5, [%sp + STACK_BIAS + L5_OFFSET]
  73.     stx %l6, [%sp + STACK_BIAS + L6_OFFSET]
  74.     stx %l7, [%sp + STACK_BIAS + L7_OFFSET]
  75.     stx %i0, [%sp + STACK_BIAS + I0_OFFSET]
  76.     stx %i1, [%sp + STACK_BIAS + I1_OFFSET]
  77.     stx %i2, [%sp + STACK_BIAS + I2_OFFSET]
  78.     stx %i3, [%sp + STACK_BIAS + I3_OFFSET]
  79.     stx %i4, [%sp + STACK_BIAS + I4_OFFSET]
  80.     stx %i5, [%sp + STACK_BIAS + I5_OFFSET]
  81.     stx %i6, [%sp + STACK_BIAS + I6_OFFSET]
  82.     stx %i7, [%sp + STACK_BIAS + I7_OFFSET]
  83.     saved
  84.     retry
  85. .endm
  86.  
  87. .macro FILL_NORMAL_HANDLER
  88.     ldx [%sp + STACK_BIAS + L0_OFFSET], %l0
  89.     ldx [%sp + STACK_BIAS + L1_OFFSET], %l1
  90.     ldx [%sp + STACK_BIAS + L2_OFFSET], %l2
  91.     ldx [%sp + STACK_BIAS + L3_OFFSET], %l3
  92.     ldx [%sp + STACK_BIAS + L4_OFFSET], %l4
  93.     ldx [%sp + STACK_BIAS + L5_OFFSET], %l5
  94.     ldx [%sp + STACK_BIAS + L6_OFFSET], %l6
  95.     ldx [%sp + STACK_BIAS + L7_OFFSET], %l7
  96.     ldx [%sp + STACK_BIAS + I0_OFFSET], %i0
  97.     ldx [%sp + STACK_BIAS + I1_OFFSET], %i1
  98.     ldx [%sp + STACK_BIAS + I2_OFFSET], %i2
  99.     ldx [%sp + STACK_BIAS + I3_OFFSET], %i3
  100.     ldx [%sp + STACK_BIAS + I4_OFFSET], %i4
  101.     ldx [%sp + STACK_BIAS + I5_OFFSET], %i5
  102.     ldx [%sp + STACK_BIAS + I6_OFFSET], %i6
  103.     ldx [%sp + STACK_BIAS + I7_OFFSET], %i7
  104.     restored
  105.     retry
  106. .endm
  107.  
  108. .macro CLEAN_WINDOW_HANDLER
  109.     rdpr %cleanwin, %l0
  110.     add %l0, 1, %l0
  111.     wrpr %l0, 0, %cleanwin
  112.     mov %r0, %l0
  113.     mov %r0, %l1
  114.     mov %r0, %l2
  115.     mov %r0, %l3
  116.     mov %r0, %l4
  117.     mov %r0, %l5
  118.     mov %r0, %l6
  119.     mov %r0, %l7
  120.     mov %r0, %i0
  121.     mov %r0, %i1
  122.     mov %r0, %i2
  123.     mov %r0, %i3
  124.     mov %r0, %i4
  125.     mov %r0, %i5
  126.     retry
  127. .endm
  128.  
  129. #endif
  130.